package org.papervision3d.core.math.util
  {
          import org.papervision3d.core.geom.renderables.Vertex3D;
          import org.papervision3d.core.math.NumberUV;
          
          public class @ax-student-ar-org-papervision3d-core-math-util-InterpolationUtil
          {
                  public static function interpolatePoint( a:Vertex3D, b:Vertex3D, alpha:Number ):Vertex3D
                  {
                          var dst:Vertex3D = new Vertex3D();
                          dst.x = a.x + alpha * (b.x - a.x);
                          dst.y = a.y + alpha * (b.y - a.y);
                          dst.z = a.z + alpha * (b.z - a.z);
                          return dst;
                  }
                  
                  public static function interpolatePointTo(a:Vertex3D, b:Vertex3D, alpha:Number, dst:Vertex3D):void
                  {
                          dst.x = a.x + alpha * (b.x - a.x);
                          dst.y = a.y + alpha * (b.y - a.y);
                          dst.z = a.z + alpha * (b.z - a.z);
                  }
                  
                  public static function interpolateUV( a:NumberUV, b:NumberUV, alpha:Number ):NumberUV
                  {
                          var dst:NumberUV = new NumberUV();
                          dst.u = a.u + alpha * (b.u - a.u);
                          dst.v = a.v + alpha * (b.v - a.v);
                          return dst;
                  }
                  
                  public static function interpolateUVTo( a:NumberUV, b:NumberUV, alpha:Number, dst:NumberUV):NumberUV
                  {
                          dst.u = a.u + alpha * (b.u - a.u);
                          dst.v = a.v + alpha * (b.v - a.v);
                          return dst;
                  }
                  
          }
  }